INTERACTION OF COBALT AND MANGANESE NITRATES WITH GRAPHITE UNDER HYDROTHERMAL CONDITIONS

Chemical Problems Pub Date : 2022-01-01 DOI:10.32737/2221-8688-2022-1-35-39

A. A. Mammadova

引用次数: 0

Abstract

The hydrothermal reduction of cobalt and manganese nitrates with graphite in the temperature range of 250-3500C has been investigated to obtain nanosized spinel structures. As a result, Co2Mn3O8 and (Co,Mn)(Co,Mn)2O4 spinel phases with average particle sizes of 42 nm and 66 nm have been obtained depending upon reaction conditions (temperature, reaction time and ratio of reagents). The compounds had the following compositions in accordance with the data of energy dispersive analysis (EDA): C-graphite - 86.2%, Co2Mn3O8 - 13.8%, and C-graphite - 93.2%; (Co,Mn)(Co,Mn)2O4 - 4.8%, Mn3O4 - 1.6%, Co3O4 - 0.5%.

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水热条件下硝酸钴和硝酸锰与石墨的相互作用

在250 ~ 3500c的温度范围内，用石墨对硝酸钴和硝酸锰进行水热还原，得到纳米尖晶石结构。根据不同的反应条件(反应温度、反应时间和试剂配比)，可以得到平均粒径为42 nm和66 nm的Co2Mn3O8和(Co,Mn)(Co,Mn)2O4尖晶石相。根据能量色散分析(EDA)的数据，化合物的组成如下:c -石墨- 86.2%，Co2Mn3O8 - 13.8%， c -石墨- 93.2%;(Co、锰)(公司、锰)2 o4, 4.8%, Co3O4 Mn3O4 - 1.6%——0.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Problems

CiteScore

0.60

自引率

0.00%

发文量